IP的问题

Question

import java.net.*;public class Net{
public static void main(String[] args){
        byte[] ip = null;
        try{
         ip = InetAddress.getLocalHost().getAddress();
        
        }catch(Exception e){
         System.out.println(e);
        }
        
        
        
        for(int i = 0; i < ip.length;i++){
         if(ip[i] > 0){
         System.out.println(ip[i]);
         }else{
         System.out.println(256+ip[i]);
         }
        }
    }
}